Package for roll film



Oct. 22, 1940. v w. ZAPP 2,218,966

names FDR ROLL 3m;

7 Filed Dec. 6. 195-1 Patented Oct. 22,

UNITED STATES- PATENT .OFFICE aziam e... aiifififif 12: 5.1...

troteclmiska of Latvia Fabrlka, Riga, Latvia, .1 company December 23, 193 a Application December a, 1937, Serial No. 170,390

I In Finland 0 path from one case to the other without shar'p bends, and in which the partof the film between the two cases isbentirely free on both sides.

Another object or the invention is to create a package by means of whlchthe exchangeoi the film in the photographic, apparatus may be carried out in a simple manner'in daylight without manipulations for iastening the end of the film to a roller.

Another object of. the invention is to produce a package the receiving roller of which is coupled with a film feeding mechanism simply by the insertion of the package into a photographic apparatus, at the same time as the lens system of this photographic apparatus may findits location in the space between the't'wo cases of the package.

Another object a package having an interconnecting piece of such construction and arrangement that it may be used as a handle whenthe package is inserted into a photographic apparatus or removed therefrom.

Another objectv oi the invention is to avoid the use of special changing: boxes or similar means which must be filled by the photographing person.

A further object is to produce a package of same package.

The package according to the present invention is intended to be used especially in photographic apparatus of the type described 'in my two co-pending patent applications Serial Nos. 178,389 and 178,388, both filed Dec. 6, 1937, now Patents No. 2,169,548 of Aug. 15, 1939 entitled -Roll film camera and No. 2,161,941 of June 13, 1939 entitled Film feeding mechanism for photographic apparatus, respectively. Some of the invention is to provide features herein shown and described are shown and. described in my, said co-pending applicaons.

The package consists of two cases II and I2 and an intermediate piece 3. 'The case II is formed of two caps Ila, lib or substantiallycylindrical shape and pressed into each other. The case I2 also is formed of two caps l2a, llb of substantially cylindrical shape and pressed into each other. The intermediate piece 91s formed as a plate rigidly interconnecting-the two cases I l and i2 and lying flush with the end sides of the cases II and I2. The plate 3 may be integral with the outer caps llb, lZb ot thetwo cases.

The twocases II, I! lay at a distance from each other substantially corresponding to thelength ofa picture. The case ll contains the roll 5 of film not exposed, and the case l2 contains the roll 8 of film exposed. The film l which stud an opening is provided through which cou-' so pling means 6 upon the hub ,4 project. These means 6 are adapted to be engaged by a film feeding mechanism of the type described in my -c0-pending patent application Serial No. 178,388,

June 13, 1939.

filed Dec. 6, 1937, now Patent No. 2,161,941-= of The film is kept for sale in the package described abcvm The intermediate piece 3 is used as a handle wheri the package is being inserted.

The portion of the film extending between the two cases 1| and 12, now lies in aslot behind of the-film is brought into position and that square may now be exposed.

-,After the entire film has been exposed the package is removed from the apparatus and may be left for developing. The package may be thrown away. A new package containing a film not exposed is inserted into the apparatus.

What-I claim-is: 1. A light-tight package for unperiorated' roll film, comprising, incombination, a supply .case for containing a. roll of film to be exposed, said simply case having a slot opening substantially tangentially so that the film may be discharged in a direction substantially tangential to the is preferably unperiorated is passed through slots 1 '9 in the two cases H, I! and extends between the 4o the lens. Now, the first unexposed picture square film roll, said supply case having end walls substantially perpendicular to the axis of thefilm roll, awsecond case arrangedat a distance from each of said cases, the space between said two cases being free except for said interconnecting piece, the take-up case having a central opening, andcoupling means on the take-up roller, which coupling means is accessible through said opening for engagement with a film-feeding mech- .anism to drive the take-up roller, the film extending in a straight; path between the two fihn slots. r

2. A light-tight package for unperforated roll film, comprising, in combination, a supply case for containing a roll of film to be exposed, said' supply case having a slot in ts periphery opening substantially tangentially to the roll of film, so that the film may be discharged in a directionsubstantially tangential to the film roll, said supply case having an end wall lying substantially perpendicular tov the axis of the film roll, a second case arranged at a distance from the supply case substantially corresponding to the length of a picture, a take-up roller in'sa'id second to which roller the one end of the 111m is attached, a slot in the take-up case lying opposite to and facing toward the slot in the supply case, so as to allow the film, after exposure, to enter the take-up case tangentially to the roller, said take-up case having an end wall lying perpendicularly to the axis of the roller, a plate extending substantially perpendicularly to the axis oi the film rolls between only one end wall of each of said cases, the space between the two cases being free except for said plate, said plate being fixed to said end walls so as tomaintain the cases in spaced relation, the take-up case having a central opening, and coupling means on the take-up roller, which coupling means is accessible through said opening for engagement with a film-feeding mechanism to drive the takeup roller, the film extending in a straight path between the two film slots.

3. A light-tight package for unperiorated roll film, comprising in combination, two cylindrical caps integral with a rigid intermediate plateand having open ends, two other cylindrical caps inserted into the open ends of said first-mentioned caps to close said open ends and attached to said caps to form two substantially cylindrical chambers, a roll of unexposed film in one of said chambers, said unexposed film supply chamber having a slot extending substantially perpendicularly to the plane of said plate and opening substantially tangentially to the periphery of saidsupply chamber so that the film may be discharged from the unexposed film chamber, in a direction substantially tangential to the film roll, a cylindrical vhollow central stud in the other chamber, said stud being open at both ends, a cap-shaped film roller journalled on said stud, one end of the film being attached to said roller, said film having its part between said two chambers free .on both sides and extending in a straight path, the exposed film take-up chamber having a slot facing the slot in the unexposed film supply chamber and disposed in such position that the exposed film may enter the takeup chamber in a direction substantially tangential to the roller, and projections on the bottom or said roller, said projections extending into said hollow stud to be operatively engaged-by a film-feeding mechanism.

. WALTER ZAPP. 

